J&D Manufacturing 20in ES Shutter Fan, 1/3 HP, Single Phase

J&d manufacturing's es shutter fan is a durable agriculture grade exhaust fan perfect for barn and building peaks, greenhouses, warehouses and more. Es shutter fans are available without a cord, or pre-wired with a cord and plug for no electrician required installation. Fans ship fully assembled out of the box so you're up and running in no time. features: 20 shutter fan assembled blade and 1/3hp variable speed motor when used with optional variable speed control combine to produce 3140 cfm must be hardwired 115/230v energy efficient motor has completely sealed ball bearings and is maintenance free aluminum shutter includes tie bar to reduce flapping in the wind one piece solid venture adds stability and reduces noise limited warranty of 2 years